74740361 has 4 divisors (see below), whose sum is σ = 74883792. Its totient is φ = 74596932.

The previous prime is 74740339. The next prime is 74740373. The reversal of 74740361 is 16304747.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74740361 - 2⁶ = 74740297 is a prime.

It is a super-2 number, since 2×74740361² = 11172243124820642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74740301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70931 + ... + 71976.

It is an arithmetic number, because the mean of its divisors is an integer number (18720948).

Almost surely, 2^74740361 is an apocalyptic number.

It is an amenable number.

74740361 is a deficient number, since it is larger than the sum of its proper divisors (143431).

74740361 is a wasteful number, since it uses less digits than its factorization.

74740361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143430.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 74740361 is about 8645.2507771608. The cubic root of 74740361 is about 421.2291299789.

The spelling of 74740361 in words is "seventy-four million, seven hundred forty thousand, three hundred sixty-one".